38914 Federal Register / Vol. 86, No. 139 / Friday, July 23, 2021 / Rules and Regulations 

Regulatory Findings 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, and 

(3) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2021–14–11 General Electric Company: 

Amendment 39–21638; Docket No. 

FAA–2020–1179; Project Identifier AD– 

2020–00818–E. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective August 27, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to General Electric 

Company (GE) CF6–80A, CF6–80A1, CF6– 

80A2, CF6–80A3, CF6–80C2A1, CF6– 

80C2A2, CF6–80C2A3, CF6–80C2A5, CF6– 

80C2A5F, CF6–80C2A8, CF6–80C2B1, CF6– 

80C2B1F, CF6–80C2B1F1, CF6–80C2B1F2, 

CF6–80C2B2, CF6–80C2B2F, CF6–80C2B3F, 

CF6–80C2B4, CF6–80C2B4F, CF6–80C2B5F, 

CF6–80C2B6, CF6–80C2B6F, CF6– 

80C2B6FA, CF6–80C2B7F, CF6–80C2B8F, 

CF6–80C2D1F, CF6–80C2K1F, and CF6– 

80C2L1F model turbofan engines with an 

installed thermal shield having one of the 

following part numbers: 2787M85P01, 

9315M41P09, 9315M41P13, 9315M41P14, 

9315M41P15, 9315M41P16, 9315M41P20, 

9348M13P01, 9367M63P01, 9367M63P02, 

9367M63P03, 9367M63P04, 9367M63P05, 

9367M63P06, 9367M63P07, or 9315M41P20. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7250, Turbine Section. 

(e) Unsafe Condition 

This AD was prompted by an inspection by 

the manufacturer that revealed cracking of 

the high-pressure turbine (HPT) rotor stage 1 

disk, caused by initial flange-to-flange 

cracking on the HPT thermal shield between 

the HPT rotor stage 1 disk and the HPT rotor 

stage 2 disk. The FAA is issuing this AD to 

prevent failure of the HPT rotor stage 1 disk 

and the HPT rotor stage 2 disk. The unsafe 

condition, if not addressed, could result in 

uncontained release of the HPT rotor stage 1 

and stage 2 disks, damage to the engine, and 

damage to the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) After the effective date of this AD, at 

every piece-part exposure of the HPT rotor 

stage 1 disk, HPT rotor stage 2 disk, or the 

HPT thermal shield, perform a visual 

inspection and a fluorescent penetrant 

inspection of the HPT thermal shield. 

(2) During any inspection required by 

paragraph (g)(1) of this AD, if a crack 

extending through either the forward or aft 

flange of the HPT thermal shield is detected, 

remove the HPT thermal shield, the HPT 

rotor stage 1 disk, and the HPT rotor stage 2 

disk from service. 

(h) Installation Prohibition 

Do not install onto any engine an HPT 

rotor stage 1 disk or HPT rotor stage 2 disk 

that was removed from service due to the 

requirements of paragraph (g)(2) of this AD. 

(i) Definition 

For the purpose of this AD, ‘‘piece-part 

exposure’’ is when the HPT rotor stage 1 

disk, HPT rotor stage 2 disk, or HPT thermal 

shield is separated from their mating rotor 

parts within the HPT rotor module. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, ECO Branch, FAA, has 

the authority to approve AMOCs for this AD, 

if requested using the procedures found in 14 

CFR 39.19. In accordance with 14 CFR 39.19, 

send your request to your principal inspector 

or local Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the ECO Branch, send it to 

the attention of the person identified in 

Related Information. You may email your 

request to: ANE-AD-AMOC@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(k) Related Information 

For more information about this AD, 

contact Kevin M. Clark, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 District 

Avenue, Burlington, MA 01803; phone: (781) 

238–7088; fax: (781) 238–7199; email: 

Kevin.M.Clark@faa.gov. 

(l) Material Incorporated by Reference 

None. 

Issued on June 25, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–15694 Filed 7–22–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0375; Project 

Identifier MCAI–2020–01245–R; Amendment 

39–21656 AD 2021–15–09] 

RIN 2120–AA64 

Airworthiness Directives; Leonardo 

S.p.a. Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Leonardo S.p.a. Model AB139 and 

AW139 helicopters. This AD was 

prompted by two events of 

uncommanded emergency flotation 

system (EFS) deployment during flight. 

This AD requires replacing certain partnumbered EFS control panels and 

prohibits installing them. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective August 27, 

2021. 

ADDRESSES: For service information 

identified in this final rule, contact 

Leonardo S.p.A. Helicopters, Emanuele 

Bufano, Head of Airworthiness, Viale 

G.Agusta 520, 21017 C.Costa di 

Samarate (Va) Italy; telephone +39– 

0331–225074; fax +39–0331–229046; or 

at https://www.leonardocompany.com/ 

en/home. You may view the referenced 

service information at the FAA, Office 

of the Regional Counsel, Southwest 

Region, 10101 Hillwood Pkwy., Room 

6N–321, Fort Worth, TX 76177. For 

information on the availability of this 

material at the FAA, call (817) 222– 

5110. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 


khammond on DSKJM1Z7X2PROD with RULES
Federal Register / Vol. 86, No. 139 / Friday, July 23, 2021 / Rules and Regulations 38915 

searching for and locating Docket No. 

FAA–2021–0375; or in person at Docket 

Operations between 9 a.m. and 5 p.m., 

Monday through Friday, except Federal 

holidays. The AD docket contains this 

final rule, the European Aviation Safety 

Agency (now European Union Aviation 

Safety Agency) (EASA) AD, any 

comments received, and other 

information. The street address for 

Docket Operations is U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE, Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Ronnea Derby, Aerospace Engineer, 

Denver ACO Branch, Compliance & 

Airworthiness Division, FAA, 26805 E 

68th Ave., Mail Stop: Room 214; 

Denver, CO 80249; telephone (303) 342– 

1093; email Ronnea.L.Derby@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to Leonardo S.p.a. Model AB139 

and AW139 helicopters with an EFS 

control panel part number (P/N) 

3G9560V00556 (for use with night 

vision goggle) or 3G9560V00557 

(standard) installed. The NPRM 

published in the Federal Register on 

May 25, 2021 (86 FR 28040). In the 

NPRM, the FAA proposed to require 

replacing EFS control panel 

P/Ns 3G9560V00556 and 

3G9560V00557 with EFS control panel 

P/Ns 3G9560V00559 and 

3G9560V00558, respectively. The 

NPRM also proposed to prohibit 

installing EFS control panel 

P/Ns 3G9560V00556 and 

3G9560V00557 on any helicopter. The 

NPRM was prompted by EASA AD 

2015–0172, dated August 21, 2015 

(EASA AD 2015–0172), issued by 

EASA, which is the Technical Agent for 

the Member States of the European 

Union, to correct an unsafe condition 

for AgustaWestland S.p.A (formerly 

Agusta S.p.A.), AgustaWestland 

Philadelphia Corporation (formerly 

Agusta Aerospace Corporation) (now 

Leonardo S.p.a.) Model AB139 and 

AW139 helicopters with an EFS 

installed. EASA advises of two events of 

uncommanded EFS deployment during 

flight. Subsequent investigation 

revealed that these conditions had been 

caused by improper design of EFS 

control panel P/Ns 3G9560V00556 (for 

use with night vision goggle) and 

3G9560V00557 (standard). This 

condition, if not addressed, could result 

in reduced control of the helicopter. 

Accordingly, EASA AD 2015–0172 

requires replacing EFS control panel 

P/Ns 3G9560V00556 and 

3G9560V00557 with EFS control panel 

P/Ns 3G9560V00559 and 

3G9560V00558, respectively. EASA AD 

2015–0172 also prohibits installing EFS 

control panel 

P/Ns 3G9560V00556 and 

3G9560V00557 on any helicopter. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the costs. 

Conclusion 

These helicopters have been approved 

by EASA and are approved for operation 

in the United States. Pursuant to the 

FAA’s bilateral agreement with the 

European Union, EASA has notified the 

FAA about the unsafe condition 

described in its AD. The FAA reviewed 

the relevant data and determined that 

air safety requires adopting this AD as 

proposed. Accordingly, the FAA is 

issuing this AD to address the unsafe 

condition on these helicopters. 

Related Service Information 

The FAA reviewed AgustaWestland 

Bollettino Tecnico No. 139–374, dated 

July 6, 2015. This service information 

specifies procedures for replacing EFS 

control panel P/Ns 3G9560V00556 and 

3G9560V00557 with EFS control panel 

P/Ns 3G9560V00559 and 

3G9560V00558, respectively. This 

service information also notes that EFS 

control panel P/Ns 3G9560V00556 and 

3G9560V00557 can be upgraded by 

following Sirio Panel Service Bulletins 

6WS–MI100135 Ed.01 and 6WS– 

MI100134 Ed.01. 

Differences Between This AD and the 

EASA AD 

EASA AD 2015–0172 applies to 

Model AB139 and AW139 helicopters 

with an EFS installed, whereas this AD 

applies to those model helicopters with 

EFS control panel P/N 3G9560V00556 

(for use with night vision goggle) or 

3G9560V00557 (standard) installed 

instead. EASA AD 2015–0172 specifies 

replacing an affected EFS control panel 

within a compliance time of flight hours 

or months, whichever occurs first, based 

on helicopter configuration, whereas 

this AD requires that replacement 

within a shorter compliance time in 

hours time-in-service but the same 

number of months, based on helicopter 

configuration instead. 

Costs of Compliance 

The FAA estimates that this AD 

affects 133 helicopters of U.S. Registry. 

Labor rates are estimated at $85 per 

work-hour. Based on these numbers, the 

FAA estimates the following costs to 

comply with this AD. 

Replacing an EFS control panel takes 

about 1 work-hour and parts cost about 

$12,342 for an estimated cost of $12,427 

per helicopter and up to $1,652,791 for 

the U.S. fleet. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on helicopters identified in this 

rulemaking action. 

Regulatory Findings 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, and 

(3) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 


khammond on DSKJM1Z7X2PROD with RULES
38916 Federal Register / Vol. 86, No. 139 / Friday, July 23, 2021 / Rules and Regulations 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2021–15–09 Leonardo S.p.a.: Amendment 

39–21656; Docket No. FAA–2021–0375; 

Project Identifier MCAI–2020–01245–R. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective August 27, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Leonardo S.p.a. Model 

AB139 and AW139 helicopters, certificated 

in any category, with an emergency flotation 

system (EFS) control panel part number (P/ 

N) 3G9560V00556 (for use with night vision 

goggle) or 3G9560V00557 (standard) 

installed. 

(d) Subject 

Joint Aircraft Service Component (JASC) 

Code: 3212, Emergency Flotation Section. 

(e) Unsafe Condition 

This AD was prompted by two events of 

uncommanded EFS deployment during 

flight. The FAA is issuing this AD to address 

improper design of certain EFS control 

panels. The unsafe condition, if not 

addressed, could result in reduced control of 

the helicopter. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) At the following compliance time, 

replace EFS control panel P/N 

3G9560V00556 or 3G9560V00557 with EFS 

control panel P/N 3G9560V00559 or 

3G9560V00558, respectively: 

(i) For helicopters with EFS P/N 

3G9560F00111 or 3G9560F00113, with 

Aerosekur floats with ‘‘pyrotechnical’’ 

inflation system P/N 3G9560V01051 

installed, within 94 hours time-in-service 

(TIS) or 3 months after the effective date of 

this AD, whichever occurs first. 

(ii) For helicopters with EFS P/N 

3G9560F00111 or 3G9560F00113, with 

Aerosekur floats with ‘‘SMA’’ inflation 

system P/N 3G9560V01052 installed, within 

377 hours TIS or 12 months after the effective 

date of this AD, whichever occurs first. 

(iii) For helicopters with EFS P/N 

3G9560F00212 with Aerosekur floats with 

‘‘fuse disk’’ inflation system P/N 

3G9560V02051 installed, within 565 hours 

TIS or 18 months after the effective date of 

this AD, whichever occurs first. 

(2) As of the effective date of this AD, do 

not install EFS control panel P/N 

3G9560V00556 or 3G9560V00557 on any 

helicopter. 

(h) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, International Validation 

Branch, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. In 

accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the International Validation 

Branch, send it to the attention of the person 

identified in paragraph (i)(1) of this AD. 

Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(i) Related Information 

(1) For more information about this AD, 

contact Ronnea Derby, Aerospace Engineer, 

Denver ACO Branch, Compliance & 

Airworthiness Division, FAA, 26805 E 68th 

Ave., Mail Stop: Room 214; Denver, CO 

80249; telephone (303) 342–1093; email 

Ronnea.L.Derby@faa.gov. 

(2) The subject of this AD is addressed in 

European Aviation Safety Agency (now 

European Union Aviation Safety Agency) 

(EASA) AD 2015–0172, dated August 21, 

2015. You may view the EASA AD at https:// 

www.regulations.gov in Docket No. FAA– 

2021–0375. 

Issued on July 15, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–15481 Filed 7–22–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2021–0003; Airspace 

Docket No. 21–ACE–5] 

RIN 2120–AA66 

Amendment of Class D and E Airspace 

and Revocation of Class E Airspace; 

Cape Girardeau, MO 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action amends the Class 

D and Class E airspace and revokes 

Class E airspace at Cape Girardeau 

Regional Airport, Cape Girardeau, MO. 

The FAA is making this action as the 

result of an airspace review caused by 

the decommissioning of the Marion very 

high frequency (VHF) omnidirectional 

range (VOR) navigation aid as part of the 

VOR Minimum Operational Network 

(MON) Program. The name of the 

localizer is also updated to coincide 

with the FAA’s aeronautical database. 

Controlled airspace is necessary for the 

safety and management of instrument 

flight rules (IFR) operations in the area. 

DATES: Effective 0901 UTC, October 7, 

2021. The Director of the Federal 

Register approves this incorporation by 

reference action under 1 CFR part 51, 

subject to the annual revision of FAA 

Order 7400.11 and publication of 

conforming amendments. 

ADDRESSES: FAA Order 7400.11E, 

Airspace Designations and Reporting 

Points, and subsequent amendments can 

be viewed online at http://www.faa.gov/ 

air_traffic/publications/. For further 

information, you can contact the 

Airspace Policy Group, Federal Aviation 

Administration, 800 Independence 

Avenue SW, Washington, DC 20591; 

Telephone: (202) 267–8783. The Order 

is also available for inspection at the 

National Archives and Records 

Administration (NARA). For 

information on the availability of FAA 

Order 7400.11E at NARA, email 

fedreg.legal@nara.gov or go to https://

www.archives.gov/federal-register/cfr/ 

ibr-locations.html. 

FOR FURTHER INFORMATION CONTACT: John 

Fornito, Operations Support Group, 

Eastern Service Center, Federal Aviation 

Administration, 1701 Columbia Ave., 

College Park, GA 30337; Telephone 

(404) 305–6364. 

SUPPLEMENTARY INFORMATION: 

Authority for This Rulemaking 

The FAA’s authority to issue rules 

regarding aviation safety is found in 

Title 49 of the United States Code. 

Subtitle I, Section 106 describes the 

authority of the FAA Administrator. 

Subtitle VII, Aviation Programs, 

describes in more detail the scope of the 

agency’s authority. This rulemaking is 

promulgated under the authority 

described in Subtitle VII, Part A, 

Subpart I, Section 40103. Under that 

section, the FAA is charged with 

prescribing regulations to assign the use 

of airspace necessary to ensure the 

safety of aircraft and the efficient use of 

airspace. This regulation is within the 

scope of that authority as it amends the 

Class D airspace; amends the Class E 

surface airspace; amends the Class E 

airspace extending upward from 700 

feet above the surface; and revokes the 

Class E airspace area designated as an 

extension to Class D and Class E surface 


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